Fuel Pump Noise update

Bernie Benz b.benz at charter.net
Thu Jul 8 19:41:57 EDT 2004

Snake oil usually works.  DFI if IAB!


> From: Kneale Brownson <knotnook at traverse.com>
> Date: Thu, 08 Jul 2004 19:29:51 -0400
> To: quattro at audifans.com, 200q20v at audifans.com, v8 at audifans.com
> Subject: Fuel Pump Noise update
> Thanks  to Steve Bednarski, who suggested a little lube in the fuel might
> help my loud fuel pump keep pumping.
> We used the lubing properties of Stabil and some drygas to keep the 200q20v
> running smoothly when it started acting up at his end of my 1600-mile
> round-trip from northern MI to Eastern PA Tuesday/Wednesday.  I think maybe
> I got a bad load of gas on the way.  Car was stumbling and dying when
> pressed for performance.
> When the same thing occurred in the middle of the return trip, I got some
> more drygas and the Marvel Mystery Oil Steve said might help the pump.  No
> more stumbling, and when I got home, the very loud fuel pump (you could
> hear it from several feet away outside the car) was no longer singing to
> me.  I'm going to see how long it goes without starting to make noise
> again.  It's one of those skinny little pumps with the internal pressure
> regulator that I installed a couple years ago.  It had suddenly started
> screeching last weekend after being totally quiet throughout its tenure in
> my fuel tanks (it looked OK and was clean when I transferred it to the new
> replacement fuel tank a couple weeks ago).
> So, if you've got a loud fuel pump, try a little Marvel Mystery Oil in the
> tank to see if it gets quiet.
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